Colder PLC23004 Acetal Tube Fitting, Elbow, Straight Thru, 1/4" Insert x 1/4"Barb 90-degree elbow for connecting two fittings at an angle Fitting has an insert coupler on one end and barbed construction on the other for connecting tubes with different ends Acetal copolymer plastic for low moisture absorption and high tensile and flexural strength Working pressure of up to 120 psi Operating temperatures range from -40 to 180 degrees F